Improvement in blind-wiring machines



ELIJAH F. DUNAWAY, OF CINCINNATI, OHIO.

Iletters Patent No. 112,791, dated March 21, 1871. j

IMPROVEMENT IN BLIND-WIRING MACHINES.

The Schedule referred to in these Letters Patent and making parl: of thesame.

To all whom it may concern Be it known that I, ELIJAH F. DUNAWAY, ofCincinuati, in the county of Hamilton and State of Ohio, have invented anew and improved Blind-Wiring Machine; and I do hereby declare that thefollowing is a full, clear, and exact description thereof, which willenable others skilled in the art to make and use the same, referencebeing had to the accompanying drawing forming part of thisspecification, in which- Figure l represents a side elevation, partly insection, of my improved blind-wiring machine.

Figure 2 is front elevation of the same.

Figure 3 is a detail vertical transverse section of the slide, :1; x,tig. 1, being the line of section.

Figure 4 is a detail side view of the table and frame.

Figure 5 is a detail vertical transverse section through the table andframe, showing the saine adapted for wiring slats, 'y y, fig. 3, beingthe line of section.

'Similar letters of reference indicate corresponding parts.

This invention relates to a new machine for wiring blind-slats and rods,and has foi-its object to make the apparatus entirely adjustable forapplying staples of.suitablelength to articles of various thicknesses.

The invention consist-s in various details oi construction andarrangement of parts, as hereinafter more fully described. v

A in the drawing represents the main support or standard of my improvedmachine. It is made in form of an upright post, standing on suitablevlegs or braces, and made of metal or'other material. v

Its upper part is enlarged to form a broad face for the reception oi'the table B.

This table is secured to the frame A by screws a (t that pass throughvert-ical slots in said frame, and is therefore vertically adjustable, aset-screw, '1), held in an ear, c, that projects from the frame, andfitting against the under side of the table, serving to adjust the sameto any height.

The table B is L-shaped in cross-section, and supports on its horizontalarm the bed G, on which rods, or the L-shaped bed D, on lwhich slats arewired.

E is the upper frame of' the machine, secured to the vupper part of theframe A, for holding the punch and other wiring mechanism.

This frame E is, by a screw or screws, d, that pass through horizontalslots i-n a backwardly-projecting rib of the frame A, secured thereto,so as to be laterally adjustable, a set-screw, e, Vheld in .a projectingear, j, of the frame A, serving to adjust said upper frame E. v p

Fis a treadle, pivoted to the lower 'part of the frame A, and connectedby a rod, g, with a slotted slide, G, to'which thefpnnch H is secured.

VThe slideG .isprov'i'ded with vertical slots, through which areiittedscrews h into the frame E, said screws having beveled heads, as inIig. 3, so that they can beA set to hold the slide more or less closeagainst E and atA thev same time to guide the same.

The punch works through the eye, which is in front closed by a plate, i,that is by screws j j secured to the' front plate t' of the frame E. j

The plate t is, by the screws, made adjustable forward or backward, sothat it will serve to adjust the eye for the reception of the stapleto-thethickness of wire.- Spring eyes heretofore employed are .notpracticable, and unadjustable eyes will not receive larger staples, andbe too large for smaller. By the adjustable plate c" all sizes ofstaples can be admitted.,

The staples are hung upon an inclined plate, I, which is held by aspring, K, its front end resting against the back of the plate i.

The punch, when drawn down` by the action of the treadle, 'orcesthefront staple down into the wood on the table, causing at the same timethe plate I to yield slightly backward. After the punch has been drawnup by the action of a spring upon the treadle, the spring K will forcethe plate I forward, again bringing a new staple under the punch.

For wiring the center rodsoi 'blinds I place upon the table B theprismatic bed O, and upon the same the rod J to be wired.

' This rod is held between two plates,l m, which are drawn togetherbymeans of screws, or pressed to-4 recei'ves the end of a pawl,n, pivotedto a lever, L, that is, by a strap, O, connected with a` bell-crank, p,

the said crank being by a rod, q, connectedlwith the treadle.`

A spring, lr, holds the pawl against the notched face of the plate m. v

The strap o locks into a notchededge of the hellcrank, and can besecured nearer to or further from the pivot of the same, to therebyregulate the stroke of the pawl and the consequent feed of the ro'zl.

S is a spring, by which the pawl is thrown back after each stroke, andwhereby in fact the treadle is raised after each downward mot-ion.

Forwiringslats the bed Gand plates l m are removed, and the bed D forthe slat is put upon the table, vsaid bed having a gauge, t, forregulating the position of the slat, and a hollow back for properlysustaining the lsame on edge. l

The lateral adjustment of the frame E is necessary whenever the machineis changed from rod to slatwirng, and m10@ vea-rsa, and for differentthicknesses of the same. The vertical adjustment of the table isnecessary for driving slats of differentlengths and to different depths.

Having thus described my invention,

I claim as new and desire to secureby Letters Patent--- 1. The slotteslide G, combined with the' screws h,

, havng beveled eads, as and for the purpose descri ed.

2. The pawl'm, combined with treadle mechanism Ll O l? Q R S F, for thepurpose described.

3. The combination broad-faced and slotted standard A c, table B, beds OD, and part E, all constructed and applied to form the snpporting-fremeof a blind:

wiring machine.

. ELIJAH F. BUNAWAY.

Wtnessesz' Gno. W. Comunit, J. E. QORMANY.

